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t.VwanalM f►MALf I II.NL .JCMyll.Lb. IN L.. <br /> Client- €MCON Associates Date Received 07/10/92 <br /> Project EMCON Project No G71-29 01 Work Order #I SJ92.0835 <br /> Arco Facility No 2130 Sample Matrix Water <br /> QA/QC Report <br /> Matrix Spike/Duplicate Matrix Spike Summary <br /> TPH as Gasoline <br /> EPA Method 5030/DHS LUFT Method <br /> pg/L (ppb) <br /> Date Analyzed 07/15/92 <br /> Percent Recovery <br /> Sample Spike Result Acceptance <br /> • Analytes Spike Level Result MS DMS MS OMS Criteria <br /> TPH as Gasoline 250 ND 258 262 103 105 70-140 <br /> TPH Total Petroleum Hydrocarbons <br /> ND None Detected at or above the method reporting limit <br /> Approved by Date <br /> 7 <br />